Cowon CK11 Pro - True Wireless Earbuds Manual

Package Components

• Actual package contents may differ from the above images.
• M-size eartips are attached to the earphones.

Before you start

Wearing

• For charging please remove the protective film from the earphone charging terminal.
  
• Check the L and R marks on the earphones and put them in the correct ears.
  
• Wear them in a proper way by twisting and rotating the eartips to fit in your ears.
  

Names of Parts and Functions

Charging

Charging the Earphones

Put the earphones in the charging cradle to start charging them automatically.

• Make sure that the earphone is properly positioned in the fixing groove of the charging cradle and check if the earphone LED is on.

The earphone battery indicates 4 levels of charging.

Charging the Charging Cradle

Put the USB cable in the USB-C port and connect it to the power adapter to start charging.

The level of battery charge in the charging cradle goes from 0 to 100%.
Charging: 0~99%
Charging Complete: 100%

• Please charge the charging cradle periodically.
• For a more accurate battery reading, be sure to fully charge the cradle to 100%.

You can charge CK11 Pro simply by placing the charging cradle on the wireless charging pad without connecting the cable to the charging cradle.

• Please place the charging cradle on the wireless charging pad and check if the earphone LED is on.
• The wireless charging pad is not included.

Charging the Smartphone (Use the Cradle as a Power Bank)

Put the USB cable in the USB-A port and connect it to the smartphone to use the cradle as a power bank.

While charging the smartphone, the battery level in the charging cradle goes down from 100 to 0%.

• The cradle limits the output current to 1.5A. When the battery level is too low, it may not be possible to charge a smartphone that supports fast charging.

Using the Product

Auto Power On · Off

Opening the lid of the charging cradle turns on the earphones automatically.
(The blue LED flashes three times)

Closing the lid of the charging cradle turns off the earphones automatically.
(The red LED flashes three times)

Manual Power On / Off

• Press the button on the earphone for 3 seconds to turn it on when the power is off. (The blue LED flashes three times)
• Press the button on the earphone for 3 seconds to turn it off when the power is on. (The red LED flashes three times)

Pairing & Connection

	1 Open the charging cradle lid	2 Turn on Bluetooth	3 Connect
Description	Opening the charging cradle lid turns on the earphones automatically, and they are ready to proceed to the pairing step.	Turn on Bluetooth on your smartphone or Bluetooth-capable device.	Select 'CK11 Pro Bluetooth' from the list of detected devices to pair and connect automatically.
Voice Prompts	"Power On"	"Pairing"	"Connected"
LED

• The CK11 Pro supports: Dual mode (Stereo) to use the left and right earphones together and Single mode (Mono) to use them separately.
• Remove both the left and right earphones from the charging cradle for use in Dual Mode, or only remove one earphone for use in Single mode.
• Putting one earphone in the charging cradle while in Dual mode does not disconnect the other earphone in use.
• After the initial pairing, opening the charging cradle lid automatically connects the earphones to the most recently connected device.

Listening to Music · Calling · Volume Control

	Left		Right
×1	Play · Pause	Answering a call 1)	Play · Pause	Answering a call 1)
×2	Volume Down 2)	Rejecting a call	Volume Up 2)	Rejecting a call
×3	Voice Recognition 3)		Voice Recognition 3)
2sec	Previous Track 4)		Next Track 4)
5sec	Power On · Off 5)		Power On · Off 5)

1. In Dual mode, the microphone of the earphone removed from the cradle first will be enabled. Removing L and R earphones from the cradle at the same time enables the "R" microphone.
   In Single Mode, each earphone will output sound with both microphones enabled for use.
2. Use the Volume Down function with the L earphone and Volume Up function with the R earphone. (In Single mode, only the functions on the earphone currently in use are available.)
3. Press and hold the multifunction button for 3 times to launch the voice recognition feature of your smartphone or tablet. (Android OS: Google Assistant / iOS:Siri / Window OS: Cortana - Except during calls)
4. Use the L earphone to go to the previous track and the R earphone to go to the next track. (In Single mode, only the functions on the earphone currently in use are available.)

• By using the CK11 Pro in Single Mode, you can alternate between charging the left and right earphones for extended use. (Audio books, Podcasts, etc.)
• Since Single Mode uses only one earphone, you can stay aware of environmental sounds and use the device more safely when walking or bicycling.
• Keep the product and a mobile phone within 1 meter when pairing.
• If passkey input is required, enter a password or a PIN No.'0000'.
• When the CK11 Pro is off, press and hold the multifunction button for 8 seconds to enter pairing mode.

Voice Prompts

Status	Voice Prompts
Power On	"Power On"
Power Off	"Power Off"
Pairing	"Pairing"
Bluetooth Connection	"Connected"
Incoming call	"Incoming call" *
Disconnected	"Disconnected"
Low Battery	"Battery Low"

* For iPhone, user ringtone will be applied.

Specification

Bluetooth Version	V5.0
Bluetooth Profiles	HSP / HFP / A2DP / AVRCP
Standby Time	Up to 130 hours
Music-Playing Time	Single Mode: About 11 hours Dual Mode: About 11 hours
Charging Time	Earphones: About 1.5 hours * Charging Cradle: About 3 hours (Wired Charging) About 6.5 hours (Wireless Charging)
Earphone Battery	3.7V / 85mAh
Charging Cradle Battery	Input: USB-C, 5V 1A Output: USB-A, 5V 1A Wireless Charging: 5V 0.5A Capacity: 2600mAh
Operating Distance	Up to 10m (Free space)
Weight	Earphones: 5.4g x 2 Charging Cradle: 96g

* Number of available CK11 Pro charges using charging cradle (2600mAh)
: About 10 times (with fully charged charging cradle)

Precautions

Reset to Dual Mode (When the L and R unit are not connecting to each other)

• Use the following method for troubleshooting purposes only, not during normal operation when the left and right earphones are not connected.
• Refer to page 'Pairing & Connection' when connecting the product to a smart device for the first time.
• If the L and R units only connect in single mode during normal dual-mode operation, reset to dual mode by following the instructions below.
• If it fails to reset, start again from Step 2.

1. Delete connected device & Turn off Bluetooth
   Delete the [CK11 Pro Bluetooth] device registered on your smartphone or other Bluetooth device and turn off Bluetooth.
2. Remove earphones & Press the button twice
   Remove the left and right earphones from the cradle and immediately press and release the buttons twice simultaneously.
3. Check purple LED
   The LEDs on the left and right earphones turn purple, and the earphones switch to the pairing mode.
4. Turn on Bluetooth
   Turn on Bluetooth on your smartphone or other Bluetooth device.
5. Connection
   Select [CK11 Pro Bluetooth] from the detected devices to complete pairing and automatically connect.